18992519

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12277}}^1$

素因数の和:12314

約数の個数: 16

約数和(自身を含む): 24752448

約数和(自身を除く): 5759929

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 12277, 85939, 159601, 208709, 1117207, 1460963, 2713217, 18992519]

約数ペア:

[(1, 18992519), (7, 2713217), (13, 1460963), (17, 1117207), (91, 208709), (119, 159601), (221, 85939), (1547, 12277)]